From homeless, anonymous guy to TV star, at least for one day. Alexandre has appeared on French media , sitting on a bridge in Lyon, while inviting passers-by to give him money by scanning a QR Code with their smartphone .

What if Santa rode a four-legged robot? What looks like a sci-fi fairy tale might soon come true. Nowadays it is not reindeers that bring holiday gifts to our homes, it is most often a cumbersome, noisy and polluting van.

Global transport accounts for almost one quarter of energy-related carbon dioxide emissions, and the proportion is rising.

Poor air quality costs Europe more than €700 million per year, in health expenditures and loss of economic performance, according to official EU sources.

In a hotel lobby in Madrid we meet Umberto Guida. The 46-year-old works in Brussels for the International Association of Public Transport.